Need to reduce a pipe from 1/2 inch to 1/4 inch? The AA 45-4734 Brass Air Hose Reducer is a versatile fitting that gets the job done. This handy reducer features male threads on one end and female threads on the other, allowing you to connect different sized pipes. Made of durable brass, this reducer is a great choice for various shop applications, including water, gasoline, oil, vacuum, and air lines.